Limnas stelleri

HABIT Perennial; caespitose. Rhizomes short. Culms erect; 15–60 cm long. Leaves much reduced on the culm. Ligule an eciliate membrane; 0.3–3.5 mm long. Leaf-blades flat, or conduplicate; 5–20 cm long; 0.6–2 mm wide. Leaf-blade surface scaberulous; rough abaxially; pubescent; hairy adaxially.

INFLORESCENCE Inflorescence a panicle.

Panicle contracted; oblong; 2–6 cm long.

Spikelets solitary. Fertile spikelets pedicelled. Pedicels filiform; 0.3–6 mm long.

FERTILE SPIKELETS Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets oblong; laterally compressed; 3–4.2 mm long; falling entire.

GLUMES Glumes similar; reaching apex of florets; firmer than fertile lemma. Lower glume oblong; 3–4.2 mm long; 1 length of upper glume; chartaceous; 1-keeled; 3 -veined. Lower glume primary vein scaberulous. Lower glume surface asperulous. Lower glume apex acute. Upper glume oblong; 3–4.2 mm long; 1 length of adjacent fertile lemma; chartaceous; 1-keeled; 3 -veined. Upper glume primary vein scaberulous. Upper glume surface asperulous. Upper glume apex acute.

FLORETS Fertile lemma ovate; 3–4.2 mm long; membranous; keeled; 5 -veined. Lemma surface asperulous; rough above. Lemma apex acute; awned; 1 -awned. Principal lemma awn dorsal; arising 0.2–0.25 way up back of lemma; geniculate; 4.5–9 mm long overall. Palea 0.75–0.8 length of lemma; 1–2 -veined; 1-keeled, or 2-keeled.

FLOWER Lodicules 2. Anthers 2; 2–2.5 mm long. Ovary glabrous.

FRUIT Caryopsis 1.7–2.5 mm long. Embryo 0.2–0.25 length of caryopsis.

DISTRIBUTION Asia-temperate: Siberia and Soviet far east.

NOTES Aveneae. Zlaki.

Please cite this publication as detailed in How to Cite Version: 3rd February 2016.